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Evaluation of the responsiveness of Short Form-12 Health Survey version 2 (SF-12v2) in Chinese patients with hypertension in primary care

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Abstract

Purpose

There is limited evidence on the responsiveness of the Short Form-12 Health Survey version 2 (SF-12v2) in hypertensive patients. This study aimed to evaluate both the responsiveness of the SF-12 measures in Chinese hypertensive patients.

Methods

A prospective longitudinal study was conducted on hypertensive patients managed in public primary care clinics between 2012 and 2013. A total of 583 and 431 patients were surveyed and completed SF-12v2 at baseline and at 12-month follow-up interviews, respectively. Using global rating of change scale as an external anchor, the responsiveness was assessed by linear mixed effect models, multiple linear regression models, and receiver operating characteristic (ROC) curve analysis.

Results

SF-12v2 managed to detect negative changes among hypertensive patients in worsened general health group but failed to identify changes among hypertensive patients in improved general health group. Meanwhile, some domains of SF-12v2 detected a significant difference in difference between patients of worsened and stable/improved group and between patients of stable and improved group, but none of the domains and the summary scales reached the recommended standard of 0.7 in any comparisons in ROC analysis.

Conclusions

The SF-12v2 was responsive to worsening of HRQOL but not to improvements in HRQOL among hypertensive patients. The overall responsiveness of SF-12v2 in hypertensive patients is unsatisfactory. Further studies are needed to identify HRQOL measures with good internal and external responsiveness for hypertensive patients.

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Abbreviations

BP:

Bodily pain

DM:

Diabetes mellitus

ES:

Effect size

GH:

General health

GRS:

Global rating of change scale

HA:

Hospital authority

HRQOL:

Health-related quality of life

HT:

Hypertension

ICPC-2:

International classification of primary care-2

MCS:

Mental component summary

MH:

Mental health

PCS:

Physical

PF:

Physical functioning

RE:

Role emotional

RP:

Role physical

SD:

Standard deviation

SF:

Social functioning

SF-12:

12-item Short Form Health Survey

SF-12 v2:

SF-12 Health Survey Version 2

VT:

Vitality

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Acknowledgements

The authors hope to acknowledge the contributions of the multidisciplinary risk-stratification-based hypertension management programme team at the Hospital Authority head office, chief of service in primary care, programme coordinator in each cluster, and Statistics and Workforce Planning Department at the Hong Kong Hospital Authority.

Funding

This study was funded by the Health Services Research Fund, Food and Health Bureau, HKSAR (Ref. Nos. EPC-HKU-2 and 13142471). No funding organization had any role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; and preparation of the manuscript. All other authors have reported that they have no relationships relevant to the contents of this paper to disclose.

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Author notes

  1. Eric Yuk Fai Wan and Esther Yee Tak Yu are the Joint first authors.

Authors and Affiliations

  1. Department of Family Medicine and Primary Care, The University of Hong Kong, 3/F Ap Lei Chau Clinic, 161 Main Street, Ap Lei Chau, Hong Kong, Hong Kong

    Eric Yuk Fai Wan, Esther Yee Tak Yu, Weng Yee Chin, Tingting Wu & Cindy Lo Kuen Lam

  2. School of Nursing, The University of Hong Kong, Hong Kong, Hong Kong

    Edmond Pui Hang Choi

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  1. Eric Yuk Fai Wan
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Corresponding authors

Correspondence to Eric Yuk Fai Wan or Esther Yee Tak Yu.

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Conflict of interest

No known conflicts of interest relevant to this article were reported.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. Ethics approval of this study was granted by all local Institutional Review Board in Hong Kong (HKE: HKEC-2016-006; HKW: UW15-259; KCC: KC/KE-16-0019/ER-2; KCC: KC/KE-16-0020/ER-2; KWC: KW/EX-16-0059(98-02); NTE: 2016.055; NTW: NTWC/CREC/16010).

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Informed consent was obtained from all individual participants included in the study.

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Wan, E.Y.F., Yu, E.Y.T., Chin, W.Y. et al. Evaluation of the responsiveness of Short Form-12 Health Survey version 2 (SF-12v2) in Chinese patients with hypertension in primary care. Qual Life Res 28, 2851–2857 (2019). https://doi.org/10.1007/s11136-019-02225-6

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